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UV-map GoPro lens correction
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doggy  
#1 Posted : Monday, June 23, 2014 5:49:54 AM(UTC)
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Hi

In trying to figure out the vMix UV title mapping I had some fun with Gopro footage in order to remove the lens distortion.

please find here a Virtual set including a few screenshots from Gopro footage to use.

open the virtual set and open as inputs the images included , VS setup choose one of the images
works with video too ;-)
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avsoundguy on 1/27/2018(UTC)

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tesn  
#2 Posted : Sunday, February 26, 2017 7:11:39 PM(UTC)
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Hey,

This post has intrigued me for a while now. I downloaded the virtual set/example a while ago.

I have some live shots with box cameras and small lenses which gives the fish eye distortion. I'd love to correct the fish eye in vMix.

I can't figure out how I would go about creating a uvmap that is specific to my lens distortion.

Any tips/explanation?

Thanks,

-Brian
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Thremir  
#3 Posted : Sunday, February 26, 2017 7:26:41 PM(UTC)
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I did this by adding both the uvmap and sample image in photoshop, grouping them and making them a into smart object with sample image on top.

Then you do the wanted correction, afterwards open the smart object and hide original photo, save as uv map.
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mjgraves on 2/27/2017(UTC)
estebanvr  
#4 Posted : Friday, June 29, 2018 3:48:29 PM(UTC)
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Can someone send me these files? they are no longer available in dropbox
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doggy  
#5 Posted : Friday, June 29, 2018 3:56:07 PM(UTC)
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smudge1977 on 4/30/2020(UTC), Reinaldo on 5/1/2020(UTC)
IgnacioYBVR  
#6 Posted : Thursday, January 23, 2025 2:26:12 AM(UTC)
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Hello, recently I've found this interesting filter that I want to use to dewarp a fish eye lens image.

Our setup is the following one:
* Canon R5C
* 8-15 Mono Canon lens

We are transmitting the camera at 4K resolution (3840x2160). We have created some uv maps to be used with the Go Pro filter virtual set but the result is quite bad:

Captura de pantalla 2025-01-22 172401.png (473kb) downloaded 1 time(s).

On the right side of the image you can see the fish eye feed from the camera and on the left side we have the virtual set.

As far as I know, the requisite is to have a uv map of the same size as the image to be deformed (in this case will be 3840x2160) and 16 bits depth per channel (RGBA).

I don't know if anyone have tried something similar and if anyone has any hint about generating the uv maps.

Thank You!
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doggy  
#7 Posted : Thursday, January 23, 2025 2:55:10 AM(UTC)
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Originally Posted by: IgnacioYBVR Go to Quoted Post
Hello, recently I've found this interesting filter that I want to use to dewarp a fish eye lens image.

Our setup is the following one:
* Canon R5C
* 8-15 Mono Canon lens

We are transmitting the camera at 4K resolution (3840x2160). We have created some uv maps to be used with the Go Pro filter virtual set but the result is quite bad:

Captura de pantalla 2025-01-22 172401.png (473kb) downloaded 1 time(s).

On the right side of the image you can see the fish eye feed from the camera and on the left side we have the virtual set.

As far as I know, the requisite is to have a uv map of the same size as the image to be deformed (in this case will be 3840x2160) and 16 bits depth per channel (RGBA).

I don't know if anyone have tried something similar and if anyone has any hint about generating the uv maps.

Thank You!


Did you make the uV map yourself ? have you tried first with a 1080 one first ? what modifications have you done to it in the hope of defisheying the feed?
Kind of an extrem form of fish eye isnt it ?
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